What does the term Dimasas, Tiwas and Karbis recently seen in news refer to?

Explanation: Karbi Anglong is the largest district in Assam. The district is administered by Karbi Anglong Autonomous Council according to the Sixth Schedule of the Constitution of India. The district comprises various tribal and ethnic groups including the Kukis, Dimasas, Garos, Rengma Nagas, Tiwas and Karbis. This diversity also brought about different outfits and fuelled an uprising that did not allow the region to develop. This agreement hopes to set aside the insurgency. Hence, option 4 is the correct answer. Karbi Anglong Agreement: Under the agreement, 5 militant organizations laid down arms and more than 1000 of their armed cadres gave up violence and joined the mainstream society in February 2021. A special development package of ₹1000 crore will be allocated by the Central Government and the Assam Government to take up special projects for the development of Karbi areas over five years. This agreement will transfer as much autonomy as possible in exercising their rights to the Karbi Anglong Autonomous Council, without affecting the territorial and administrative integrity of Assam. This agreement will ensure the protection of the culture, identity, language, etc. of the Karbi people and all-round development of the region. The Government of Assam will set up a Karbi Welfare Council to focus on the development of the Karbi people living outside the Karbi Anglong Autonomous Council area. The Consolidated Fund of the State will be amended to meet the resources of the Karbi Anglong Autonomous Council